Change AudioOutputDeviceClientImpl to use WebLocalFrameBase and move to modules.

third_party/WebKit/Source/web/WebInitializer.h

Index: third_party/WebKit/Source/web/WebInitializer.h
diff --git a/third_party/WebKit/Source/web/WebInitializer.h b/third_party/WebKit/Source/web/WebInitializer.h
new file mode 100644
index 0000000000000000000000000000000000000000..5b7372fe33cd4f90e052001c171df439a994d4de
--- /dev/null
+++ b/third_party/WebKit/Source/web/WebInitializer.h
@@ -0,0 +1,21 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebInitializer_h
+#define WebInitializer_h
+
+#include "core/CoreInitializer.h"
+
+namespace blink {
+
+// WebInitializer is called during WebKit::Initialize() and allows for any
+// additional setup to be executed once per renderer process.
+class WebInitializer : public CoreInitializer {
+ public:
+  void Initialize() override;
+};
+
+}  // namespace blink
+
+#endif  // WebInitializer_h